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Deformation Mechanism and Stabilization of Martensite in TiNi Shape Memory Alloy

Shuai Wang Koichi Tsuchiya Lei Wang Minoru Umemoto

材料科学技术（英文）

The deformed microstructures of a TiNi shape memory alloy were investigated in present study to clarify the deformation mechanism. It is found that the stress-strain curve was divided into three stages based on the deformation modes. The cause of martensitic stabilization effect was also interpreted...

关键词: TiNi shape memory alloy , transmission electron microscopy , ordering , dislocation , martensitic transformation.

(1-x)Pb(Fe_2/3W_1/3)O₃-xPb(Mg_1/2W_1/2)O₃多铁性材料的有序结构及磁性能

姚春发 , 李财富 , 刘志权 , 尚建库

无机材料学报 doi:10.3724/SP.J.1077.2011.00649

以无机盐为前驱体, 利用溶胶?凝胶法固溶合成了(1-x)Pb(Fe_2/3W_1/3)O₃-xPb(Mg_1/2W_1/2)O₃多铁性固溶体...

关键词: 多铁性材料 , perovskite , Sol-Gel , ordering , magnetic property

Fe—1.83C马氏体中碳的有序化　Ⅱ.长周期有序相的晶体结构

任晓兵 , 王笑天

金属学报

Ｆｅ－１．８３Ｃ马氏体在室温时效时，超点阵衍射斑点发生分裂，表明产生了长周期有序相。分析确定该相由普通有序相γ′—ＦｅｘＣ（Ⅰ）衍生而来，周期为１０ｃ＿Ｍ（ｃ＿Ｍ为马氏体ｃ轴的长度），称为γ′—ＦｅｘＣ（Ⅱ）（ｘ＝４—１０）．其周期不随时效时间变化，但随温度升高而增加。超点阵斑点的分裂距离所对应的长...

关键词: 马氏体 , aging , long-period ordered phase , ordering

Fe_3Al合金B2有序化过程的场离子显微镜观察

翁军 , 朱逢吾 , 职任涛 , 王双全 , 肖纪美

金属学报

对不同有序度下的Ｂ２结构Ｆｅ_３Ａｌ进行了场离子显微镜（ＦＩＭ）研究．不论是否达到最大Ｂ２有序度，ＦＩＭ像的总体规则程度均很差，难以由常规方法得到有序度的信息．但是，ＦＩＭ像中的局部区域，也即〈１００〉极的场蒸发过程却提供了Ｂ２有序度的信息，通过对其连续观察发现，Ｆｅ_３Ａｌ的Ｂ２有序化进程在纳米尺...

关键词: Ｆｅ_３Ａｌ , FIM , ordering

AN X RAY DIFFRACTION STUDY OF THE AGING TRANSFORMATION IN Al Li Cu Zr ALLOY

Y.H. Wei , L.Q. Hu , L.S. Jian , L. Lu and B.S. Xu College of Materials Science and Engineering , Taiyuan University of Technology , Taiyuan 030024 , China

金属学报(英文版)

Theinitialstageofagingtransformationin Al 2 27% Li 2 68 % Cu 0 11% Zr 0 13% Ceal loy at100℃wasstudied by meansof x ray diffraction.It wasconcludedthatordering of Liatom happens whenthealloyissolution treated andquenched, and beforetheformationofδ’ phasethereexitscontinuous phasetransfo...

关键词: Al Li Cu Zr alloy , null , null , null , null

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